01 · Payment costsfee map
Stripe
$284
Paddle
$612
Polar
$558
Separate percentage, fixed, international-card and service components.
GLOBAL PAYMENT & TAX INTELLIGENCEV1 · deterministic
Know what global selling actually costs.
Compare payment fees, indirect-tax exposure and Merchant of Record trade-offs with source-backed, deterministic rules.
✓No signup✓Source-backed✓Deterministic
Decision preview
Illustrative example
Recommended stack
RecommendedPaddle
Best fit for this scenario
Monthly cost
$612
/ mo
Tax exposure
4
markets
MoR score
82
/ 100
Confidence
High
verified
SellerHK
ProductAI SaaS
B2C80%
Example data only · result is not a quote
Providers currently modeled
StripePaddlePolarLemon Squeezy
A data product, not a content wall
See the trade-offs before you commit.
The cheapest headline rate is only one line in the decision. aipay.tax puts payment cost, market exposure and operating responsibility on the same surface.
02 · Tax exposuremarket view
EUReview
USBelow
UKReview
CALow
Thresholds, evidence and responsibility stay visible; uncertainty is never silently upgraded.
03 · MoR responsibilitycoverage matrix
OperationYouMoR
Collect tax—✓
File / remit—✓
Eligibility✓—
Responsibility is modeled from provider records, not inferred from a logo.
Illustrative scenario
Compare the full trade-off.
HK seller · AI SaaS · $8,000 MRR · 80% B2C. Example values only.
Stripe
You manage
- Monthly cost
- $284 / mo
- Merchant of Record
- No
- Tax handling
- You manage
- Admin burden
- Higher
Paddle
Provider scope
- Monthly cost
- $612 / mo
- Merchant of Record
- Yes
- Tax handling
- Provider scope
- Admin burden
- Lower
Polar
Provider scope
- Monthly cost
- $558 / mo
- Merchant of Record
- Yes
- Tax handling
- Provider scope
- Admin burden
- Lower
Methodology identity
A calm system for consequential decisions.
Every result keeps business inputs, calculation code, catalog facts and source evidence distinct. That separation makes the decision easier to review.
Read the methodology01
RULES CALCULATE.
Published facts become explicit inputs.
02
CODE DECIDES.
Deterministic logic applies the same rules each time.
03
SOURCES PROVE.
Authority, title and verification date travel with the result.
04
FACTS ARE VERSIONED.
Uncertain or stale records remain visible as review items.
Start with your numbers
Make the payment / tax trade-off explicit.
Run an anonymous scenario and inspect the evidence behind each result.