Plymouth Council Tax Reduction for Self-Employed Workers

The Two Phases of Self-Employment Assessment

Plymouth treats self-employed CTS claimants differently depending on how long you've been trading. The dividing line is 12 months.

First 12 months (start-up period): The council uses your actual net self-employed earnings — gross receipts minus allowable business expenses, tax, and National Insurance. If your business is making very little, your assessed income reflects that, and you'll likely fall into a higher discount band.

From month 13 onwards: Plymouth applies a Minimum Income Floor (MIF). If your actual net earnings fall below a set threshold, the council substitutes an assumed income instead of using your real figures. This assumed income can push you into a lower discount band or disqualify you from CTS altogether.

How the Minimum Income Floor Works

The MIF is calculated using the National Minimum Wage for your age group, multiplied by your expected weekly working hours. The council assumes you're earning at least this amount, regardless of what your books actually show.

If your self-employed net profit is £50 per week but the MIF calculation produces £180 per week, the council assesses you at £180. For a single person, that would move you from Band 1 (80% discount) to Band 3 (40% discount) — halving your Council Tax Support even though your real income hasn't changed.

This hits hardest in trades with genuine seasonal variation — builders, gardeners, market traders — or anyone whose business is struggling but has been running for more than a year. The council doesn't distinguish between a business that's failing and one that's deliberately underperforming.

What Counts as Allowable Business Expenses

During the start-up period and for calculating actual earnings, Plymouth deducts reasonable business expenses from your gross receipts. These typically include:

• Stock and materials
• Tools and equipment
• Business-use portion of vehicle costs
• Premises rent (for commercial space, not your home)
• Professional insurance
• Accountancy fees

What you can't deduct: drawings (money you take out of the business), capital expenditure (the full cost of major purchases — these may be depreciated), or personal living costs.

Keep detailed records. The council will ask for audited trading accounts or comprehensive income-and-expense logs covering your assessment period. "I didn't earn much" isn't evidence — a properly documented trading account is.

Partners and the MIF

If your partner is self-employed rather than you, the MIF still applies to their income. Plymouth assesses households as a unit — both incomes are combined when determining your band placement. A self-employed partner who's been trading for over 12 months will have the MIF applied to their earnings, potentially increasing the household's total assessed income.

Challenging a MIF Assessment

If you believe the MIF has been applied incorrectly — for example, you're within the first 12 months of trading, or the council has miscalculated the assumed income — you can challenge it through the formal grievance process under Section 16 of the Local Government Finance Act 1992. If the council rejects your grievance, you can escalate to the Valuation Tribunal for England at no cost.

Prepare evidence showing your actual trading position: bank statements, invoices, tax returns, and a clear profit-and-loss statement. The more precisely you can document your real earnings, the stronger your case.

The Plymouth Council Tax Reduction Guide covers Plymouth's self-employment assessment in detail — including how to calculate whether the MIF will apply to you, what documentation to prepare, and how to present your trading figures to avoid being assessed on assumed earnings you're not actually making.

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