Annual vs monthly billing: which should your subscription offer?

In the annual vs monthly billing decision, annual billing brings cash in upfront and usually lowers churn, while monthly billing lowers the barrier to buying and suits customers who want flexibility. Most subscription businesses offer both, with a discount on annual plans, and let the customer choose.

The right balance depends on your cash needs, your customers' budgets and how quickly they get value. Here is how to think it through.

Annual vs monthly billing at a glance

The case for monthly billing

• Easier to say yes. R499 a month is a smaller commitment than R4,990 a year, especially for small businesses watching cash flow.
• Faster sales cycles. A monthly amount may fall within a manager's spending limit where an annual amount needs approval.
• Continuous feedback. Customers who leave do so quickly, which tells you early if something is wrong.
• Works well with debit orders. Many South African customers are used to a monthly debit order for services.

The main downside is more churn opportunities and more payment events. Every month is another chance for a card to expire or a debit order to bounce, so you need solid dunning management and a grip on involuntary churn.

The case for annual billing

• Upfront cash. Collecting a year in advance funds growth without borrowing.
• Lower churn. Customers decide to renew once a year, not twelve times, and have longer to embed your product.
• Fewer transactions. Fewer charges means fewer failed payments and lower per-transaction fees over a year, depending on your gateway's fee structure.
• Easier budgeting for business customers. Many organisations prefer one annual invoice they can approve and pay by EFT.

The downsides: a higher entry price, larger refund requests if things go wrong, and a big renewal moment each year that needs to be managed carefully.

How big should the annual discount be?

A common approach is to price annual plans at 10 months of the monthly price, which is "two months free", roughly a 16.7% discount. Some businesses offer one month free (about 8.3%) or a flat 10% or 20%.

Worked example with a R600.00 monthly plan:

When deciding, compare the discount with what the upfront cash and lower churn are worth to you. If a monthly customer typically stays for eight months, a customer who commits for twelve at a two-month discount is still worth more. Run the numbers with your own retention data.

VAT and invoicing for annual plans

If you are a VAT vendor, an annual subscription is invoiced like any other supply, just for a larger amount.

• A R6,000.00 annual plan priced VAT-inclusive contains R782.61 VAT (R6,000.00 × 15/115).
• Because the amount is over R5,000, you need a full tax invoice rather than an abridged one, including the recipient's name, address and VAT number where they are registered. See the SARS tax invoice guidance for current requirements.
• Talk to your accountant about how the upfront payment is recognised as revenue over the year in your financial statements.

Refunds and cancellations on annual plans

Decide this before you launch annual plans, and put it in your terms:

• Within an initial period: will you give a full refund, for example within the first 14 or 30 days?
• After that: no refund, a prorated refund, or a credit for future use?
• Plan changes: can an annual customer upgrade mid-year with proration? Can they downgrade, and when does it take effect?

If you sell to consumers, remember that South African consumer law, including the Consumer Protection Act and the Electronic Communications and Transactions Act, may give them cancellation rights regardless of your terms. Get legal advice for your situation.

Collecting annual payments

The collection method matters more for annual plans because the amounts are larger.

• Card: convenient, but a large charge is more likely to hit a card limit. Remind customers a week or two before renewal.
• Invoice and EFT: common for business customers, who may need a purchase order or approval. Send the renewal invoice well before the due date.
• Debit order: possible, but check that the annual amount and frequency are covered by the mandate.
• Instant EFT: a good option for customers who prefer to pay from their bank account without a debit order.

A sensible default for most businesses

1. Offer monthly and annual on every self-service plan.
2. Give annual plans a clear, round discount, such as two months free.
3. Show both the monthly equivalent and the full annual price on your pricing page.
4. Send renewal reminders before annual charges, with the amount and date.
5. Review your mix every quarter: what share of new customers pick annual, and how do their retention rates compare?

How CentraPoint helps

CentraPoint subscription packages can have plans on different billing intervals, with free trials, coupons and automatic renewals. Each renewal produces a branded, VAT-aware invoice and receipt, and can be collected by saved card token, debit order or invoice with pay-by-link. Customers can view invoices and change or cancel plans within your rules in the self-service portal. The subscriptions docs explain how plans and intervals are set up.

Frequently asked questions

Is annual or monthly billing better for a SaaS business?

Neither is better in all cases. Monthly lowers the barrier to buying, while annual improves cash flow and retention. Most subscription businesses offer both and let customers choose.

What is a typical annual subscription discount?

Many businesses price annual plans at 10 times the monthly price, often described as two months free, which is a discount of about 16.7%. Some choose one month free or a flat 10% to 20%.

Do I need a full tax invoice for an annual subscription?

If you are a VAT vendor and the supply is over R5,000, SARS requires a full tax invoice with the recipient's details. Check the SARS tax invoice page for the current rules.

Can customers switch from monthly to annual billing?

Usually yes. The simplest approach is to move them to the annual plan at their next renewal date, or immediately with a prorated credit for the unused part of their current month.