88% Paid: Polite Invoice Wording Gets You Paid Faster [2026]

Invoices that use the word “please” are paid 88.07% of the time, according to FreshBooks’s analysis of more than 1 million small business invoices, compared with a 78.62% baseline for invoices carrying no special wording at all. A separate study of over 350,000 email threads finds the same courtesy effect outside invoicing entirely, which suggests the pattern isn’t a quirk of one dataset but a real, measurable response to polite language.

Figure 1: Invoices carrying polite “please” wording are paid 88.07% of the time, out of more than 1 million invoices analyzed. Source: FreshBooks.

Does polite wording actually change whether an invoice gets paid?

Yes, and the gap is too large to write off as noise. FreshBooks’s analysis of more than 1 million small business invoices over a one-year period found that invoices carrying the word “please” are ultimately paid 88.07% of the time, a 9.45 percentage-point lift over the 78.62% baseline paid rate for invoices with no deliberate wording. A “Thank You” closing line performs slightly better still, at 89.61%, covered in more depth in BillyPaid’s dedicated breakdown of invoices that close with “Thank You”. A “14 Days” payment-term note, a different kind of specificity, sits close behind at 91.51%. Neither “please” nor “Thank You” is the top performer in the dataset, a stated late-fee or “Interest” note reaches 92.15%, but both comfortably clear what an invoice earns by saying nothing at all. Getting paid faster starts with wording most businesses can add to an invoice template in minutes, not a process overhaul.

Figure 2: Ultimate paid rate rises with every deliberate wording choice tested, from no special wording up to a stated late-fee note. Source: FreshBooks, analysis of 1M+ invoices.

How close does polite wording get to a firm late-fee warning?

Closer than most reminder-writing advice assumes. The full gap between no special wording (78.62%) and a firm late-fee note (92.15%) is 13.53 percentage points. Adding “please” alone closes 9.45 of those points, or roughly 70% of the entire gap, before a business ever states a consequence or threatens a fee. That means the single biggest decision isn’t firm versus friendly, it’s whether an invoice carries any deliberate wording at all. A business that adds “please” to every invoice captures most of the available lift with none of the tone risk that comes with opening a client relationship on a late-fee note.

Figure 3: Polite “please” wording alone closes about 70% of the gap between no wording and firm, late-fee wording. Source: BillyPaid analysis of FreshBooks data.

Does the politeness effect hold up outside invoicing?

It does, and the corroborating evidence comes from a completely different context. Boomerang analyzed more than 350,000 email threads pulled from mailing list archives across more than twenty online communities and found that closings expressing gratitude, “thanks,” “thank you,” and similar phrasing, produced a 62% response rate versus 46% for other closings, a 36% relative increase. Individually, “Thanks in advance” was the single best-performing sign-off tested, reaching a 65.7% response rate, followed by a plain “Thanks” at 63% and “Thank you” at 57.9%. “Best,” one of the most frequently used closings in the dataset, trailed at 51.2%, and the response rate averaged across every email in the study, regardless of closing, was 47.5%. That study predates the FreshBooks invoice data and covers general business email rather than invoices specifically, but the direction of the effect matches: courteous language correlates with a meaningfully higher response, whether the ask is a reply or a payment.

Figure 4: Email closings that express gratitude outperform closings that don’t, across more than 350,000 threads analyzed. Source: Boomerang.

How big is the politeness effect, in relative terms?

A 36% relative increase in response rate, which is a bigger swing than it sounds once it’s converted into raw numbers. Boomerang found thankful closings averaged a 62% response rate against 46% for other closings; a 36% relative lift on a 46% base moves a message from getting a reply less than half the time to getting one closer to two times in three. That scale of effect lines up with what FreshBooks found inside invoicing specifically: a 9.45-to-10.99 point jump in paid rate from adding “please” or “Thank You” wording is a comparable order of magnitude, even though the two datasets measure different outcomes (email replies versus invoices ultimately paid) in different years.

Figure 5: Gratitude-expressing email closings produce a 36% relative increase in response rate over closings without one. Source: Boomerang, 350,000+ email threads.

Is polite wording as reliable as firm wording, or does it fall short at some stage?

It falls slightly short on the raw number, but not by much, and it carries an advantage firm wording doesn’t: no relationship cost. Averaged together, “please” and “Thank You” wording produce an 88.84% ultimate paid rate, 3.31 percentage points below the 92.15% firm, late-fee-note rate. For a first invoice or an early, on-time reminder, that gap is a reasonable trade against opening a new client relationship with a stated penalty. The 2026 data on friendly versus firm reminder wording backs a staged approach rather than picking one tone for an entire sequence: polite wording upfront, firmer language reserved for the invoices that are actually overdue.

Figure 6: The average paid rate for polite wording sits just under firm wording’s rate, close enough to make politeness the safer default for a first invoice. Source: FreshBooks, analysis of 1M+ invoices.

What does this mean for how a reminder sequence should actually be worded?

It supports leading with courtesy rather than a threat. The overdue invoice reminder templates that collect best in the 2026 data open polite and escalate only once an invoice is genuinely overdue, which matches both datasets here: politeness alone captures most of the available lift, and a firm note earns its place later in the sequence rather than at the start. For the wider picture on why some businesses recover far more of what they’re owed than others, see payment reminder effectiveness data for 2026, which finds that 31% of businesses skip following up on at least one overdue invoice entirely, a bigger lever than wording tone on its own.

Wording	Ultimate paid rate	Vs. baseline
No special wording (baseline)	78.62%	N/A
”Please”	88.07%	+9.45 pts
”Thank You”	89.61%	+10.99 pts
Interest / late-fee note	92.15%	+13.53 pts

Table 1: Polite wording captures most of the gap to firm wording before a single late-fee threat is stated. Source: FreshBooks, analysis of more than 1 million small business invoices.

The Bottom Line

The 2026 data keeps landing on the same finding from two unrelated datasets: courteous language measurably changes whether a message gets a response, whether that message is an invoice or an email. Adding “please” to an invoice lifts the ultimate paid rate 9.45 points over saying nothing, closing roughly 70% of the entire gap to firm, late-fee wording, and a separate 350,000-thread email study finds a comparable 36% relative lift from gratitude language in a completely different context. None of this requires a harder conversation with a client or a stated penalty on a first invoice. A BillyPaid payment reminder can carry that polite wording automatically on every invoice and every early-stage reminder, saving the firmer, late-fee language for the invoices that actually need it.

Frequently Asked Questions

Does polite wording actually get invoices paid faster? Yes. FreshBooks’s analysis of more than 1 million small business invoices found that invoices carrying the word “please” are ultimately paid 88.07% of the time, and invoices with a “Thank You” closing line reach 89.61%, both well above the 78.62% baseline paid rate for invoices with no special wording at all.

Is polite wording as effective as a firm late-fee warning? Almost. A stated late-fee or “Interest” note tops the FreshBooks data at 92.15% ultimately paid, only 2.54 to 4.08 percentage points ahead of polite “please” or “Thank You” wording. Adding “please” alone closes roughly 70% of the entire gap between no wording and firm wording.

Does the politeness effect hold up outside invoicing? Yes. Boomerang’s analysis of more than 350,000 email threads found that thankful closings produced a 62% response rate versus 46% for other closings, a 36% relative increase, with “Thanks in advance” the single best-performing closing tested at 65.7%, against a 47.5% response rate averaged across all emails in the study.

Should a business use polite wording or firm wording on an overdue invoice? The 2026 data supports using both at different stages rather than picking one. Polite wording performs almost as well as firm wording on a first invoice or early reminder, and it carries no relationship cost, while a firm late-fee note is best reserved for later stages once an invoice is clearly overdue.

Sources and References

1. FreshBooks: Use Your Invoice Payment Terms to Get Paid Faster (analysis of 1M+ small business invoices over a 1-year period), ultimate paid rate by invoice wording, including “please,” “Thank You,” payment-term notes, and late-fee/“Interest” notes.
2. Boomerang: This Email Closing Gets the Most Replies (analysis of more than 350,000 email threads from 20+ mailing list communities), response rate by individual email closing line and the relative lift from thankful sign-offs as a group.
3. Chaser: The 2026 Accounts Receivable Report (163 validated responses, UK/Australia-led, fielded late 2025-early 2026), background context on follow-up consistency and reminder cadence referenced throughout the Reminders/Collections cluster.

Note: All figures verified as of September 2026. The Boomerang email study was published in 2017 and is not BillyPaid-specific; it is cited here as independent corroboration of the politeness effect FreshBooks measured directly in invoice data, not as a 2026 finding in its own right.