Kyodo tools work alongside you — 協働, “working together.”
Each tool runs your real numbers so you can see the risks and trade-offs and decide with confidence. Calculators, trackers, and dashboards for landlords, freelancers, and small businesses — pay once, no subscriptions, no accounts, and you stay in control of your data.
Try the free tools ↓Use them right in your browser — nothing to install, no sign-up, your numbers never leave your device.
Paste a tenant's message and it sorts the issue, checks warranties, drafts a reply, and tracks rent — a whole landlord dashboard in your browser.
▶ Watch the 90-second demoShould you buy this rental? Cap rate, cash flow, the highest smart offer, a stress test, and a multi-year return.
FreeWill it make money as a short-term rental? Net after fees, RevPAR, revenue per square foot — and whether it really beats a long-term lease.
FreeBuild a room-by-room remodel budget with contingency, then see if it pays for itself in rent or resale value.
FreeSelf-employed? See how much to set aside and what to send the IRS each quarter — using 2026 figures.
FreeTotal cost of ownership across IT endpoints, cloud vs on-prem, fleet, equipment, and HR turnover.
Free web versions tuned for specific businesses — see how many sales it takes to break even and the month you turn a profit. Each has a paid Excel or Google Sheets edition on Gumroad.
The flagship — break-even per product, cash runway with and without a salary, and a profit forecast.
FreeProfit per template after fees, sales to break even, and the month your shop turns a profit.
FreeReal profit per item after base cost + fees, and how many you must sell to break even.
FreeYour royalty per book after Amazon's cut, and how many copies to break even.
FreeTrue profit per piece after clay, glaze, and kiln firing, and pieces to break even.
FreeProfit per quilt (and per pattern) and how many to sell to break even.
FreeProfit per basket after materials and booth fees, and how many to break even.
FreeMargin after sourcing + platform fees — booth vs online — and items to break even.
FreeProfit on digital downloads vs print-on-demand, and how many to break even.
FreeProfit across prints, licenses, commissions, and gallery sales, and sales to break even.
FreeBreak-even across sponsorships, memberships, ad revenue, and products.
Pay-once spreadsheets and toolkits that pick up where the free tools leave off — full tracking, dashboards, and year-end summaries built for your accountant. Secure checkout on Gumroad (opens in a new tab).
Income, expenses, mileage, dashboard & year-end tax summary — plus the Deal Analyzer. $34
Available nowIncome & expense tracker, quarterly + year-end summaries — plus the Tax Analyzer. $22
Available nowBooking & expense logs with an occupancy / ADR / RevPAR dashboard. $27
Available now14 total-cost-of-ownership calculators in one editable Excel workbook, plus the web-calculator source. $79
Available nowThe tenant-request dashboard, warranty check, and rent tracker — runs in your browser, with Excel export. $19
Plus 11 Break-Even & Profit calculators tuned for specific businesses — creators, makers, resellers, authors & more.
Browse everything in one place: the Kyodo Partners store on Gumroad →
Free, practical how-to guides — each paired with the calculator that runs your numbers.
A property's price tag tells you nothing about whether it will make money.
Your Airbnb income isn't the nightly rate — it's the rate multiplied by how full you stay, minus cleaning, platform fees, furnishing, utilities, and lodging taxes.
A remodel is worth doing when the value or rent it adds is greater than what it costs — and not before.
Most small landlords don't need a property manager taking 8–10% of rent — they need a system.
As a rule of thumb, set aside roughly 25–30% of your net self-employment income for federal taxes — because as a 1099 worker you owe both income tax and the 15.3% self-employment tax, and no one is withholding it for you.
Total cost of ownership (TCO) is what something really costs you over its whole life — not just the purchase price, but the operating, maintenance, downtime, and disposal costs that follow, minus any resale value.
Your break-even point is your fixed monthly costs divided by the profit you keep on each sale — the number of sales you need just to cover costs.
Most potters underprice because they only count clay and glaze.
The fastest way to fail at print-on-demand is to price on instinct at $19.99.
A Notion template has almost no cost per sale, so pricing isn't about covering materials — it's about matching the price to the value and volume that make you the most money.
When you self-publish, your income isn't the cover price — it's the royalty left after Amazon's cut.
AI art has two very different cost profiles: a digital download costs you almost nothing per sale, while a print-on-demand piece carries base, print, and shipping costs like any POD product.
Artists and photographers rarely sell just one thing — prints, licenses, commissions, and gallery work all pay differently.
A finished quilt takes real materials — fabric, batting, thread — and a lot of hours, which is why fair prices feel high to buyers used to store-bought bedding.
Handmade baskets sell mostly in person, at fairs and markets — and that's where the hidden cost lives.
Reselling profit is what's left after your sourcing cost, the platform's fees, and shipping.
Successful creators don't live on ad revenue — they stack several income streams: ads, sponsorships, channel memberships, their own products, and affiliate links.
Kyodo Partners builds practical, pay-once financial calculators and spreadsheets that do the math with you — for landlords, short-term-rental hosts, freelancers, makers, and small businesses. Every tool runs free in your browser, and the paid Excel/Google Sheets versions never lock you into a subscription.
Are the calculators really free?
Yes — every web calculator on kyodopartners.com is free to use, with no account and no subscription. Your numbers stay on your device. We also sell more detailed downloadable Excel and Google Sheets versions.
Do I need to create an account?
No. The calculators work instantly in your browser with nothing to sign up for. The paid spreadsheets are a one-time purchase you download and own.
What do the paid versions add?
The downloadable toolkits add multi-year projections, worked examples, charts, a Start-Here guide, and the ability to save and keep your own copy in Excel or Google Sheets.