Dictionary / Perpetual Budget
What does Perpetual Budget mean in accounting?
Quick definition
GeneralContinuous budget. This term guides how bookkeepers record, classify, and explain related transactions in routine financial reporting.
Read more below

Examples
Adding next June after June closes
You run a fabrication shop. Your perpetual budget is a 12-month planning file. On June 30 you close June, drop that month's $8,400 shop-wage and $2,150 steel columns, and add next June at the far end ($8,700 wages, $2,280 steel based on recent invoices from a steel supplier). The file still covers twelve months. Compare June actuals on the P&L to the column you just closed; do not post the new month in QuickBooks Online or Xero.
A January–December file nobody updates
You run a tutoring business. Last December you saved a January–December budget: $4,800 classroom rent to the classroom landlord, $2,200 curriculum licenses, and $11,400 tutor pay. You never add a month when a month closes. On October 12 you try to plan winter hiring and the file has no columns after December. That frozen calendar-year sheet is not a perpetual budget. A continuous budget would have dropped January when January closed and already added the next far-end month, so you would still have a full year of plan in front of you.
Why it matters
A perpetual budget is a continuous plan that stays a fixed number of months long because you add a new month whenever one closes. You update it at each month-end close if you actually keep the plan rolling. Mix it up with a flexible budget and you will rewrite lines for volume instead of adding calendar months; mix it up with perpetual inventory and you are talking about stock records. Leave a calendar-year file frozen after you write it and you have no plan for the months past year-end.
Keep learning
Start with the bookkeeping basics, then compare software when you are ready to pick a tool.
Getting startedBookkeeping basics for small-business ownersWhat bookkeeping is, the records you need, double-entry in plain English, and a monthly rhythm that fits a 1–50 person shop.Updated October 4, 2026
RolesWhat does a bookkeeper do?A bookkeeper records bills, invoices, and bank activity so your books stay current. See the weekly work, the month-end close, and what they do not do.Updated August 18, 2026
Monthly closeMonthly bookkeeping: what to close each monthMonth-end is the job: reconcile banks and cards, age bills and invoices, check payroll, then read the reports. A close checklist for small-business owners.Updated August 18, 2026
Receipt CaptureThe 7 Best Receipt Capture Tools for Small BusinessThe 7 best receipt capture tools for small business, ranked: OCR accuracy, QuickBooks and Xero sync, real pricing, and honest tradeoffs for each pick.Updated August 9, 2026Frequently asked questions
What is Perpetual Budget in bookkeeping?
Continuous budget.
When should I use Perpetual Budget?
Use Perpetual Budget when the transaction facts match its definition and you need the ledger and financial statements to reflect the correct account and period.
What is a common mistake with Perpetual Budget?
Perpetual Budget is used for perpetual budget entries, while Paid-In Surplus covers a related but distinct bookkeeping purpose. Review both terms before posting unusual transactions. A common mistake is applying it by label only instead of checking the underlying transaction details.