ManageSubs Guides

How to calculate your subscription spending

· Updated 2026-07-15 · 4 min read

To calculate your subscription spending, first build a verified list of recurring charges. Keep each original billing cycle, convert every item to the same comparison period, handle currencies and shared costs consistently, and keep billed cash flow separate from estimates.

1. Build the list before calculating

Check Apple, every Google Play account, PayPal automatic payments, direct-provider and carrier accounts, receipts, and at least 13 months of statements. Record the biller, controlling account, price, currency, billing cycle, next date, tax treatment, current discount, and who pays. The account-by-account discovery guide covers the reconciliation in detail.

2. Choose what the total means

Choose one definition and label it. Mixing full prices, personal shares, and reimbursed costs produces a total that cannot be audited.

3. Normalize each billing cycle

For an item with a fixed price, use:

Monthly estimate = payment amount × payments per year ÷ 12
Yearly estimate = payment amount × payments per year

Do not replace the original billing schedule with the estimate. A £120 annual payment has a £10 monthly equivalent, but the cash charge is still £120 on its billing date.

4. Handle exceptions explicitly

5. Add and reconcile

Add the monthly estimates for a normalized monthly view and the yearly estimates for a normalized yearly view. Then compare the inventory with new receipts and statements. Investigate differences instead of forcing unknown charges into a category.

Use the total to make a decision

A total does not show whether an individual subscription is worthwhile. Use the subscription audit checklist to assess use, replacement cost, family access, overlaps, notice periods, and current provider options. If you change or cancel a plan, save confirmation and verify the next statement.

Where ManageSubs fits

ManageSubs can calculate monthly and yearly views from subscriptions you add or import. The result depends on the prices, cycles, currencies, and dates in those records. The app does not read bank transactions, verify actual charges, or guarantee that the inventory is complete.

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