Finfolk · free tool

How much tax should you set aside?

For people who are employed and earn side income — freelancing, a small business, or anything HMRC wants a cut of. Three numbers in, one honest answer out.

Annual salary gross, before tax

Pension contributions optional, £/year

Side income total this tax year

Side expenses allowable costs

Do you have a student loan?

Repayment plan

My employer already deducts student loan repayments from my salary via payroll

Do you also have savings interest or dividends?

Savings interest £/year

Dividend income £/year

How much PAYE tax have you already paid?

Tax withheld so far optional — shown for context only, doesn't affect the total below

Estimated extra tax to set aside

£0

Tax year 2026/27

Trading allowance applied

—

Taxable side profit

£0

Owed on side income

Income taxat your marginal rate

£0

Class 4 National Insurance

£0

Student loan top-upabove what's already deducted via payroll

£0

Tax on savings interestafter your Personal Savings Allowance

£0

Tax on dividendsafter your Dividend Allowance

£0

Total to set aside

£0

For context — already handled via PAYE

Income tax on salary

£0

Class 1 National Insurance

£0

Assumptions2026/27

Rates used are placeholders and have not yet been verified against HMRC. Treat every figure on this page as illustrative until the draft banner is removed.

Doesn't model Scottish income tax rates
Doesn't model benefits in kind
Doesn't model capital gains
Doesn't model Gift Aid
Doesn't model the High Income Child Benefit Charge
Doesn't model marriage allowance or multiple employments

Estimate only — not financial or tax advice.