Set up this company
Your books
Worked out from your journal every time you load this. Nothing on this screen is stored and nothing on it writes anything.
Arrange your dashboard
Yours alone. It is stored on your user record, so it follows you between machines and between browsers, and it changes nothing about what anybody else sees. The cards run left to right and then wrap onto the next row, so Earlier moves a card towards the top left.
Every company you can see
Whether each company's books balance. A company is named only when something is wrong.
Entities
One per LLC. Everything in the ledger hangs off one of these, so an entity is never deleted, only deactivated.
Member capital accounts
What each owner put in, took out, and is allocated of the period's result, for the company you are in. Nothing here is posted. Contributions and distributions are counted against an owner only where the entry says whose capital moved, and what nobody has attributed is printed underneath rather than left out.
Partners' capital accounts
Gives each partner their own capital account on the balance sheet, the way a CPA lays out a partnership. One entry moves the equity on the shared accounts, as of the day before the date you pick, into the partners' accounts: what an entry already names an owner for goes to that owner, the rest by the ownership percentages on file. After that, close each finished year into "the partners" on the Year end screen and it is split the same way.
Add an entity
The same things QuickBooks asks when you set up a new company.
Record a transaction
Money you spent, money you took in, or money you moved between your own accounts. Fill in what you know and this writes the bookkeeping for you.
Your access is read-only for recording transactions. You can view the Journal and Reports, but cannot record money in, money out, or transfers.
Vendors and 1099s
Who you pay, and who the taxman needs to hear about. A 1099 counts what actually left your bank in a calendar year, so it is not the same figure as your expense accounts and it is not your fiscal year.
Emailed W-9 answers waiting for you
Somebody replied to a W-9 email saying the vendor needs no W-9. An email cannot show who wrote it, so nothing has changed yet. Confirming ticks Does not need a W-9 on the vendor, recorded as you.
Paid, but not a vendor yet
Payments in the year chosen above (every year, under All years) that no vendor on the list claims, grouped by the name the bank or the entry gave. Add the ones who are real vendors; the bank's spelling is saved with them, so their payments are found from then on. Card payments, transfers, loans and checks with no name are left off.
1099s
What the 1099 report leaves out, and why
Bills
Money you owe and have not paid yet. Entering a bill records the cost straight away and the debt alongside it, so what you owe is on your books from the day the bill arrives rather than the day you pay it.
Enter a bill
What the supplier sent you. The total is added up from the lines, so it always matches what you typed.
Record a bill payment
This records a payment you have already made and clears what you owe. It does not send money or instruct your bank. Enter the amount actually paid, up to the remaining balance. Cash-basis reports allocate each payment proportionally across the original bill lines.
Chart of accounts
One chart per entity. Accounts hold no balance of their own; every balance is added up from the journal, so nothing here can drift out of step with the books.
Start from a template
Additive and safe to run twice. It skips any number or name you already use, so it will never overwrite an account you set up yourself.
Add account
Bank import
Download a statement from your bank as CSV and it lands here as staged transactions. An import posts NOTHING to the books: a bank line only has one side, and saying what the other side is comes next. Until then a whole import can be undone in one go.
Bank feeds
Connect a bank or card once and its posted transactions arrive here every morning, staged exactly like an import. Pending charges wait until they post. The feed can only READ these accounts: it cannot move money, and it posts nothing to the books.
What the columns in this file mean
Paste a statement and say what each column is. It is saved against this account and used for every import after it. Two of these answers go wrong quietly: which way the dates read, and whether a positive number is money coming in or going out. Both are asked rather than guessed, because either one backwards gives you a file that imports perfectly and is entirely wrong.
Import a statement
Rows this system has already seen are skipped and listed, so downloading January and then the 15th of January to the 15th of February costs you nothing. Two identical transactions on the same day are not the same transaction, and both come across.
Import
Review transactions
Importing a statement holds the transactions. This is where you say what each one actually was, and only then does it reach your books. Nothing here is done for you: there is no "everything else" account, nothing is posted automatically, and a suggestion is only ever a suggestion until you press the button.
Rules for filling these in
A rule saves you picking the same account forty times. It does NOT post anything: it fills the answer in and you still press Post on every row. The one thing to watch is a rule that is too broad, so before you save one it tells you how many of the rows waiting above it would catch.
Add a rule
Reconcile an account
Take a statement from the bank, say what it closed at, and tick off the transactions that were on it. The difference has to reach zero. There is no button that writes a difference away and there is not going to be one: QuickBooks will post an adjusting entry for whatever you could not find, and that is how a real mistake becomes a permanent line nobody looks at again.
Month-end balances
What the bank said when each month closed, and whether that month's bank lines add up to it. Nothing here posts or finishes anything. Before about 9/27/26 there are no bank readings. A worked out figure is only as good as the bank lines behind it. A saved balance is not a statement.
Where this account already stood
For an account whose history was agreed in QuickBooks before this system existed. This is a DECLARATION about what somebody already checked, not a reconciliation: it posts nothing, it changes no total, and every report still adds up every entry exactly as before. What it changes is where this screen thinks the account starts, and which transactions are old news rather than rows waiting to be ticked. If the balance you type disagrees with what these books add up to, the difference shows up here immediately and by name, which is the point.
Transactions on this statement
Tick what is on the paper statement. Nothing here is ticked for you, and nothing here posts anything to your books.
Reconciliations on record
Every statement this entity has agreed, given up on, or taken back. Undoing one puts its transactions back on the list to be ticked again. It writes nothing to your books either way: no entry is created, none is reversed, not a cent moves.
Invoices
Issuing an invoice posts it to your books: it debits Accounts Receivable and credits whatever the lines are for. Recording a payment debits the account the money landed in and clears the receivable. Your ledger is kept on the accrual basis, which is what lets a report be run either way.
This records money already received; it does not charge the customer or collect funds. Enter the amount received below, then choose Record payment on the matching invoice. Leave the amount blank to record its remaining balance. Cash-basis reports allocate the receipt proportionally across the original invoice lines.
Raise an invoice
It is saved as a draft. A draft has no number, can be changed and can be deleted. Issuing it gives it a number and freezes it, because from then on somebody else is holding a copy.
What has been billed
Remaining balances include dated partial payments and payment reversals. This is what is still owed.
One tenant's statement
What one tenant was charged, what they paid and what they still owe. It opens with the balance brought forward from before the period, so a quiet month still shows the arrears rather than a clean zero. A cancelled invoice appears twice, as the bill that was sent and as the credit that withdrew it, so this matches the paperwork the tenant is holding.
Customers
Tenants, management clients, anybody who gets billed. A customer with invoices against them cannot be deleted, only deactivated, because deleting them would leave those invoices addressed to nobody.
Depreciation
The biggest deduction on a rental return, and the one you cannot catch up by being careful later: the schedule runs from the day the building was placed in service.
The register
An asset here is a building or an improvement. The schedule is worked out from the day it was placed in service and is never stored: it is recomputed every time you look, so a correction to the cost corrects every year at once.
Section 179 and bonus depreciation do not apply to a building, only to the shorter-lived property inside one. The current rule, checked 2026-09-16: the One Big Beautiful Bill restored a permanent 100% first-year deduction for qualified property acquired after 19 January 2025. That is your CPA's call, not this software's, which is why nothing here works it out for you.
Put an asset on the register
Land is never depreciated. Land left inside the building's cost is a deduction taken every year that should never have been taken, so this asks for the split rather than assuming it. Your closing statement or the county assessor's ratio is where the number comes from.
Loans
A mortgage payment is three different things wearing one number. The interest is deductible, the principal is not, and the escrow is your own money moving. Posted as one lump they are all wrong at once, and they balance perfectly while they are.
What you owe
The schedule here is what your payment should be made of. The lender is the authority on what it was: check the interest against the 1098 before it goes on a return, because a payment that landed late or an escrow re-analysis moves the real figure.
Schedule
Record a loan
The payment is the principal and interest only, not the total that leaves your bank. Escrow goes in its own box: it is not an expense, it is your money sitting at the lender until the tax bill arrives.
Security deposits
A deposit is somebody else's money sitting in your bank account. Until it is on the books as something you owe, the cash is there and the obligation is not, and the balance sheet balances while it overstates what the company is worth by the whole of it.
What you are holding
Movements
Nothing here posts by itself. While the books run alongside QuickBooks, press a movement when QuickBooks has the same entry, and not before.
Record a movement
Investment account
Dividends, interest, fees and the gains or losses on sales. Load the statement, say once what your brokerage's own words mean, and it is remembered. Nothing posts until you press a line.
Load a statement
What each column is
Nothing is guessed here. Two things that are easy to get wrong and impossible to notice afterwards: which order the dates are in, and what your brokerage calls each kind of activity.
What your brokerage's words mean
These are the words actually in your file. Anything left unmapped refuses the whole file rather than being filed under something plausible.
Lines on this statement
Nothing here posts by itself. While the books run alongside QuickBooks, press a line when QuickBooks has the same entry.
The year
What the brokerage reported, and how much of it is in your books. The two are counted separately on purpose: a report that added up only what is posted would agree with the books by construction and tell you nothing about whether anything is missing.
Between your companies
Money moving from one of your companies to another is four lines in two separate sets of books. If only one side lands, both balance sheets still balance: one company is owed money the other has never heard of, and nothing inside either one can see it. This screen posts both sides and then checks they are still a pair.
Are both sides there
Transfers
Nothing here posts by itself. While the books run alongside QuickBooks, press a transfer when QuickBooks has both halves, and not before.
Record one
Splitting a shared cost
One company pays the insurance or the management fee for several. This works out each company's share from a saved percentage table, reads the actual cost out of your own books for the period rather than asking you to type it, and prints the entries. It posts nothing, in any company. While the books run alongside QuickBooks, an allocation entered here and not there is a difference that never closes, so these go into QuickBooks and arrive here on the next import.
A new split
Name the accounts the shared cost lands in, and what share each company carries. The accounts are how the amount is found: the worksheet adds up what they actually hold for the period, so it stays right when the premium changes.
Hold Ctrl, or Command on a Mac, to pick more than one. Only expense accounts are offered: splitting income by typing a percentage is not an allocation, it is a decision about who earned it.
Prepaids and accruals
Insurance and property tax are bought once a year and used up twelve months at a time. Posted in the month the money moved, one month carries a whole year and eleven carry none. The annual figure is right, so nobody catches it, and every month inside the year is useless for comparing against another.
What is being spread
Nothing here posts by itself. While the books run alongside QuickBooks, press a month when QuickBooks has the same entry, and not before: a correction made only here is a difference that never closes.
Schedule
Record one
Year end
Closing a year decides where that year's result sits on the balance sheet: it moves off the computed retained earnings from prior years line and into an equity account you name. It never changes the total, only which line carries it.
Where the money is now
Nothing is posted when you close a year. There is no closing entry, so last year's profit and loss still reads exactly as it does today, and a correction posted into a closed year moves the rolled-up figure the moment you post it rather than leaving a stale entry behind.
Years
Closing a year and locking the dates are two separate decisions. This screen does the first. The date lock, which is what stops anything being posted into a finished year, is on the Journal screen, and you normally want both.
A corporation rolls into Retained Earnings. A partnership rolls into member capital. This system does not hold your tax treatment yet, so it asks rather than guessing, and your CPA is who decides.
What your accountant needs
The documents a CPA asks for at year end, with the dates each one covers worked out from this company's own fiscal year. Nothing here closes anything or posts anything: every button downloads a file. The 1099 summary covers the calendar year whatever your books run on, because the IRS does not care what your books run on.
Reopened
A year that was closed and then reopened. The close is kept rather than deleted, because who closed a year and who took that back is the first question asked when two balance sheets of the same date disagree.
Owner's pack
One company, or everything together: am I making money, do I have enough cash, is anything going wrong. Worked out from your books each time you open it. Nothing on this screen posts anything.
Expenses
Every expense in the books for a period: bank and card charges, bills and hand entries, with what paid it and whether a receipt is on it. "Missing receipt" means $75 or more, paid from a bank, card or bill, with no receipt, from October 1, 2026 on. Nothing on this screen posts to your books.
Receipts
Email a receipt to mayhem@mayhemmanage.com, with or without a note, or add one here. It waits until the charge shows up in the books, then attaches itself. If it cannot tell which charge, it emails whoever sent it. A note like "entry 1020" or "EHP" sends it straight there.
Tenants
Everybody who rents from this company now, and everybody who did. Open a tenant to see their tenancies, file the signed lease on each one, and end a tenancy when they move out. Nothing on this screen posts to your books.
Tenant rents
Who has paid, month by month, worked out from your books: rent posted to an income account at the tenant's door. Nothing on this screen posts anything.
Rent roll
A rent roll records what is owed. Nothing on this screen posts to your books. Rent arrives in them through Bank import and Review transactions.
What falls due
Worked out from the tenancies below every time you press. Nothing is stored and nothing is charged.
Raise the rent charges
Each due date below becomes an invoice for that tenant, posted to your books as rent owed. A month that has already been charged is never charged again. Nothing happens until you press Raise.
Who is behind
What each door was due over a period, against the rent that actually reached it. The money half is read out of your books, so it can only see a deposit that was tagged to a building or a door when it was posted. Tag them on Review transactions as they come in.
Record a tenancy
A unit can only have one tenancy at a time. If a tenant is moving out and another in, end the first one the day before the second starts.
There are no tenants yet. Add them under Invoices, as customers, and they will appear here.
Properties and units
Recurring entries
A recurring entry proposes. It never posts on its own. Nothing here runs on a timer, and no date reaches your books until you press post on it. Each date can only ever post once, however many times you press.
Set up a recurring entry
The lines are a journal entry that has not happened yet, so they have to balance here, now, rather than on the first of the month when somebody else is looking at it.
QuickBooks mapping
Every account in QuickBooks needs an answer before any of your history can come across: which account here is it, or is it deliberately staying behind. There is no "everything else" bucket, because that is how a year of books ends up in the wrong rows.
Load the QuickBooks account list
In QuickBooks: Accounting, then Chart of accounts, then Export, and paste the file below. Loading a newer list keeps every answer you have already given, so re-pulling after adding an account costs you nothing.
Map an account
Import from QuickBooks
Upload the General Ledger export, check what it would do, then import it. Nothing posts until you press Import, and pressing it twice is safe.
Nothing uploaded yet.
What this file would do
Read from the file every time this screen loads, never stored, so it cannot drift from what would actually be posted.
Accounts it will not guess about
These names are in the export and not in your chart. Say what each one is, or drop it. Nothing imports until every one is answered.
Left out on purpose
Every line, with its amount, so what left is never a mystery.
Opening balances
Accounts that had no activity in the period never appear in a general
ledger, so their balances have to come from a balance sheet dated the day before.
One account per line, as Account name = amount, using QuickBooks' own
sign.
Customers and vendors
A different export from the one above: in QuickBooks, Reports, Customer Contact List or Vendor Contact List, exported to CSV. Every imported rent line in these books carries its tenant as text in the shape 350 East Main:Unit 200:Apr 01, 2025 - Mar 31, 2027, which is a building, a door and a lease term with nothing able to report on it. This reads those apart and creates the buildings, the doors and the tenants.
It creates no tenancies and it posts nothing. A tenancy here carries rent, a frequency and a due day, and none of the three is anywhere in a contact list. The lease terms it reads are listed for you to set up on the rent roll with the rent you know, rather than having one invented for you. Customers, buildings and doors have no amount on them, so nothing here changes a figure on any report.
Import
Reports
Added up from your journal. Nothing here is a stored balance; every number is recomputed from entries each time you press the button. Paste the same period out of QuickBooks and the difference column does the rest, which is the whole point of running the two systems side by side.
Ask Claude for a report
Say what you want to see in your own words: which company, which dates, how to group it. Claude builds it from your books and shows it here with a download button. If Claude needs to know something first it asks, and you answer in the same box. It only reads. Nothing in your books changes.
Every report
Pick one. The ones with a screen of their own open it; the rest open just below. Every report here downloads as Excel or PDF, and the file carries the same warnings the screen does.
Report
Profit and loss
Cash or accrual is your choice here, and the ledger does not change either way. The entries hold full accrual detail because cash can be worked out from accrual and accrual can never be worked out from cash. On cash, income counts when the money arrived and an invoice nobody has paid is not on the report at all. If you paste a QuickBooks report to compare against, run both sides on the same basis or this screen will tell you it cannot compare them.
Excel and PDF give you exactly what is on this screen, including anything the banner above is telling you. A downloaded file carries its own warnings, because the file is the thing that gets emailed.
Saved reports
A saved report remembers which report it is, what dates it covers and how it was set up. It stores no figures at all: every number is worked out again from your journal each time you open it, so a saved report can never show you a stale total. Saving one records who saved it and when.
Fixed or rolling is the whole decision here, and there is no default. Fixed means the report always covers the same dates, which is what you send to a CPA. Rolling means it moves, so "last month" is whichever month you open it in. The two look identical on the day you save them and different every day afterwards, so this system will not pick one for you.
Paste the QuickBooks profit and loss
In QuickBooks: Reports, then Profit and Loss, set the dates, set the accounting method, then Export to CSV and paste the file below. Say which basis you ran it on, because QuickBooks does not write that into the file and this system will not guess.
Budget vs actual
What you planned against what happened, for one building or for the whole company. A profit and loss says what happened; this is the only report here that says whether it was what you meant to happen. Nothing in a budget is posted. A budget has no debit and no credit and it never reaches your journal, which is why it is the one thing you can enter on this side while these books run alongside QuickBooks.
The period has to be whole months, because a budget is monthly. Half of January's budget against half of January's spending is a guess about which half, and the guess always flatters, so this refuses it rather than printing it with a note underneath.
The budget
One line per account, per building, twelve months across. The same account at two buildings is two lines, and a line with no building is a cost that belongs to the company rather than to any one door: an LLC's own insurance and its accountancy fees are the usual ones, and forcing them onto a building would make every per-building figure wrong in a way that still added up.
A budget line
Either one annual figure to spread evenly over the twelve months, or the twelve months themselves when a lease steps up part way through the year. The spread is exact: twelve months of a 10,000.00 plan add back to 10,000.00 and not to 9,999.96.
Or the twelve months. Filling any of these in uses them instead of the annual figure above, and an empty month is nothing rather than a refusal.
Balance sheet
Everything you own, everything you owe, and what is left over, as of one date. Cumulative from your first entry ever, not for a period. Every number is added up from the journal each time; nothing here is a stored balance. Assets have to equal liabilities plus equity, and if they do not, this page says so before it says anything else.
Paste the QuickBooks balance sheet
In QuickBooks: Reports, then Balance Sheet, set the date, set the accounting method, then Export to CSV and paste the file below. Say which basis you ran it on, because QuickBooks does not write that into the file and this system will not guess. Leave the Net Income line in; it is not an account and it is compared separately.
Trial balance and ledger
Every account, what it started the period with, what moved through it, and what it ended with. Added up from your journal each time you press the button; nothing here is a stored balance. Three pairs of columns rather than one, because this system never posts a closing entry, so the QuickBooks-shaped single column would be out by the prior years' profit. Each pair balances on its own.
Account register
All companies, side by side
One column per company you have access to, over the same period, added up from each company's own journal. This is the only screen that looks at more than one company at once, and it is read only: nothing here posts, edits or moves anything. You cannot pick which companies appear. It is every company you can see, decided on the server, so no screen can ask about books you were not granted.
Profit and loss by building turns the table sideways: one column per building across every company, plus each company's own costs that belong to no single door. A building is a building whichever LLC holds the deed, and that is the axis to read when the question is which of your buildings is losing money. Two companies with a building of the same name stay two columns and the duplicate is reported: this system cannot tell two buildings from one record entered twice.
Journal
Every dollar that moves is one of these. Entries are never edited and never deleted: a correction is a reversing entry, so the history of your books stays exactly as it happened.
The search reads every entry in the company, not the ones on screen, so the count underneath is the real one. It looks at what an entry says about itself: its memo, its reference and who it was with. An amount matches the whole entry or any line of it.
Questions waiting
Anything somebody has asked about and nobody has closed. Ask on any entry below with the Ask button; the answer is a reply on the same entry, so the conversation stays next to the number it is about. Nothing here moves a figure. If the answer is that something should change, that change goes into QuickBooks and arrives here on the next import.
Reclassify
Move what was posted to one account onto another for a period, for example repairs that were really an improvement. It posts one entry that moves the net, building by building, and names every entry it covers. Nothing it covers is changed, and the entry can be reversed like any other.
New journal entry
Debits on the left, credits on the right. It will not save until the two sides match, because an entry that does not balance is not an entry.
Trial balance
Added up from the journal every time you open it. Nothing here is stored, so it cannot drift away from your entries.
Closing date
Everything dated on or before the closing date is locked. This is the same idea as QuickBooks, and it is what stops a finished year being quietly changed later.
Prior years
A finished year is read-only. When something genuinely has to change in one, you open a door into it for a stated reason and a set number of minutes. The closing date never moves, only the dates you name are affected, the door shuts on its own, and every entry made through it says so on the entry itself, forever.
Audit log
Every change anyone makes to your books, with who made it and when. Nothing here can be edited or deleted, including by whoever made the change. Passwords and sign-in tokens are never written into it.
Change detail
Exactly what this record says. Before is what it was, after is what it became.
People
Who can get into these books, what each of them may do, and which companies they can see.
Access requests
Nobody gets in by signing up. Approving lets someone in the door; it does not give them any entity. Give them entities below, after they are in.
Invite somebody
They get a link, sign in with the address you send it to, and arrive with the role and companies you pick here. No waiting for you to approve them afterwards.
The link only works for that address, only once, and only for 14 days. Forwarding it to somebody else does nothing. If it goes to the wrong person by mistake, withdraw it below and send a new one.
Here is the link. It is shown once and cannot be looked up again, so copy it now if you want to send it yourself.
People
A role says what somebody may DO. The entity list says WHERE they may do it. They are separate on purpose, so the CPA can see everything and change nothing, and a bookkeeper can post entries for one LLC and never see the others. The server checks both on every single request; this screen only decides what to ask for.
A reset link for .
Change access
Every change here is written to the audit log with your name on it, and it cannot be edited out afterwards.
Settings
Your company, your own account, and the things you set up once and then do not think about again.
Inspect a backup file
Read-only inspection on this device. The file is not uploaded or restored. No destination is selected. A restore needs a separately verified isolated destination and full server validation.
Your sign-in
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Scan this in your authenticator app, or type the key into it by hand. Then enter the code it shows to prove it worked.
If you cannot scan it, the key is:
Write these down now
Ten recovery codes, each usable once, for the day your phone is not in your hand. This is the only time they are shown. Anyone holding one can sign in as you, so keep them the way you would keep a spare key.
Company
Mayhem Money shows one company at a time, and every screen follows it. Nothing mixes two companies together on one screen. You can change it here or by clicking the company at the top of the sidebar.
QuickBooks
Only needed when a company has history in QuickBooks to bring across. Set up once, then you should not need these again. Mayhem Money does not write anything back to QuickBooks.
Your access
Your role and which entities you can see are decided by the server, not by this page.
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Appearance
Light or dark, and which colour the app wears. Both are remembered by this browser, not by your Mayhem Money account, so neither follows you to another computer.
You are using Light.
Colour scheme
You are using Ledger green. The logo stays green whichever you pick, and no scheme changes the colour of a warning.
Build
What this site is running right now.
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Twister
The mascot. He wanders, he steps aside when you start typing, and he stays off Bank import, Transaction matching, Reconciliation and the period close panels. Drag him anywhere to park him.