Budgeting when your income changes every month

The real problem

Most budgeting advice assumes a salary: the same amount on the same day every month. Freelancers, contractors, gig workers, commission sales staff and seasonal workers don’t get that. One month brings $7,000, the next $2,500, and a client pays 60 days late.

A fixed budget built on your average income fails the first time a month comes in below average. Then there’s money that isn’t really yours to spend, like taxes that aren’t withheld, and costs of doing the work that land on a personal card.

A practical approach: budget money you have, not money you expect

A few habits make variable income manageable:

1. Work out your baseline. Add up the essentials (housing, food, utilities, insurance, minimum debt payments). This is the floor you must cover every month.
2. Set aside taxes first. If no tax is withheld from what you earn, move a share of every payment into a separate account or envelope as soon as it arrives. The right share depends on where you live and what you earn; a tax professional can tell you.
3. Budget only money that has arrived. Assign each payment when it lands, not when it’s invoiced.
4. Build a buffer. Aim, over time, to have next month’s baseline already set aside, so this month’s income pays for next month.

A worked example with round numbers. Your baseline is $3,000 a month. In March, a $5,000 payment arrives. You set aside $1,250 for taxes (a placeholder share; yours may differ), put $3,000 towards April’s essentials, and give the remaining $750 jobs: some to the buffer, some to irregular costs. In April only $2,000 comes in, but April’s essentials are already covered, so the $2,000 goes towards May. A lean month costs you buffer, not rent.

How to budget on an irregular income and get a month ahead go into more detail.

How Kemback helps

• Envelope mode. Kemback shows Ready to Assign: the money you have that hasn’t been given a job. You assign it when it arrives, not before. Positive balances roll into next month, and if you overspend, the shortfall comes out of next month’s Ready to Assign, so nothing is counted twice.
• Envelopes or goals for taxes and the buffer. Create a taxes envelope and a buffer envelope, or savings goals funded from an account or an envelope, with the monthly amount needed to reach a target.
• Safe to spend. See what’s left after upcoming bills, and a 90-day projected balance, so you can tell whether a slow month is a problem.
• Bills and recurring transactions on a calendar, including software subscriptions, with a warning when one goes up.
• Categories, tags and reports. A rule can tag work-related spending as it comes in, and you can report income and spending by category, payee or tag, which helps when you sit down to gather numbers for your accountant.
• An advisor seat. Give your accountant view-only access with the advisor role.
• Switchable budgets. If you land a steady contract and prefer a plan per category, switch to category mode without losing anything.

What it doesn’t do

Kemback is personal finance software, not business accounting. It has no invoicing, no tax reports and no tax estimates, and it doesn’t calculate what you owe. Treat any share you set aside for taxes as your own estimate, and check it with a tax professional, especially in your first year of self-employment.

Transactions come in from files you download from your bank (OFX, QFX, QIF or CSV). Automatic bank sync through Plaid is planned for the Plus plan, which isn’t on sale yet.

Questions

What's the best budget method for irregular income?

Many people with variable income find envelope budgeting works best, because you only assign money that has already arrived. A lean month can't break a plan that never counted on money you didn't have.

Can Kemback set aside money for taxes?

You can make a taxes envelope or a savings goal and put a share of each payment into it. Kemback doesn't calculate or estimate taxes; ask a tax professional what share is right for you.

Can I keep business and personal money apart?

You can track separate accounts and use categories and tags to tell business spending from personal, then report by category or tag. Kemback isn't accounting software and has no invoicing.

Can my accountant see my numbers?

Yes. Invite them with the advisor role, which is view-only. On the Free plan a household has two people, so that uses the second place.

Is it free?

Yes. Envelope and category budgets, goals, reports, import and export are all on the Free plan, with no time limit.