Keel & Charter Calculators

What your Airbnb estimate actually leaves you in coastal SC and GA after every tax

Got a revenue estimate from AirDNA or Rabbu? Paste it below. Those numbers are gross: before the Airbnb fee, cleaning, management and taxes. This STR take-home calculator takes them all out.

Most Airbnb calculators stop at revenue minus a guess. This one stacks the state, county and town taxes for 18 coastal towns, says which ones Airbnb sends in and which ones land on you, charges South Carolina property tax at the 6% rate a rental really pays, and gives you the number that is left each month.

Where is it?
Paste your AirDNA or Rabbu estimate (optional)

Why these estimates are not what you keep

Bookings

Monthly costs
Property tax
Taxes

Your take-home

Track every booking and the tax you owe by town in the Keel & Charter Airbnb Host Tracker ($19)

Worked example: a Folly Beach two-bedroom

Say you bought a $600,000 two-bedroom on Folly Beach with $240,000 down, so the loan is $360,000 at 6.75% over 30 years: $2,335 a month in principal and interest. You list it at $295 a night, book 62% of nights, and the average guest stays 4 nights. You charge a $195 cleaning fee and pay your cleaner $150.

  • Booked nights: 365 / 12 x 62% = 18.9 a month, or 4.71 stays.
  • Bookings: $5,563 rent plus $919 in cleaning fees = $6,483 a month.
  • Airbnb's 15.5% host fee on that: $1,005. Cleaners: $707.
  • Property tax: $600,000 x 6% x 248.6 mills / 1,000 = $8,950 a year, $746 a month. Folly's 2025 combined millage is 248.6 on the Charleston County Auditor's millage card.
  • Fixed costs: mortgage $2,335, property tax $746, insurance $3,600 / 12 = $300, HOA $650, utilities $350, supplies $90, maintenance $250. Total $4,721.
  • Guests also pay $908 a month in tax on top of your price. On Folly, Airbnb collects and remits all of it, so none of it is yours to send.
  • Left for you: $6,483 minus $1,005 minus $707 minus $4,721 = $50 a month. Break-even occupancy is 61.4%.

This clears $50 a month after taxes and fees. That is thin for a $600k property. One slow month at half your occupancy loses $2,336, which is more than 3 years of take-home.

That is the default in the calculator above, so you can change one number and watch what moves. Put the same house on Kiawah Island and the taxes stay the same for the guest, but the Charleston County and Town fees become yours to file, because Airbnb only collects the state taxes there.

Why an AirDNA or Rabbu estimate is not what you keep

Revenue estimators show gross booking revenue: what guests pay you before anything comes out. Their own help pages say so.

So before an estimate is money in your account, take out the Airbnb host fee (15.5% for most hosts), what each clean costs you, any manager cut, the mortgage, insurance, HOA and South Carolina property tax at the 6% rental rate. Guest taxes are on top of the estimate, but on Kiawah, Seabrook, Sullivan's Island, Summerville, Bluffton and Surfside Beach some of them are yours to file. Paste the annual figure in the box at the top: with AirDNA the calculator takes the cleaning fees back out to find your nightly rate; with Rabbu it adds your cleaning fees on top. Rates for every town: coastal SC and GA short-term rental tax rates.

Sources checked Oct 27, 2026. Keel & Charter is not affiliated with AirDNA or Rabbu.

Which taxes Airbnb sends in, town by town

On a direct booking you collect and remit everything yourself. On Airbnb, this is what is still on you. "Rate to verify" means the rate is the figure the town or county reported to the state, not yet confirmed by its own ordinance; the calculator counts it in full.

TownCountyYou remit on Airbnb bookings
City of CharlestonCharleston (part Berkeley)Nothing. Airbnb collects and remits every tax on Airbnb bookings.
Charleston County (unincorporated)CharlestonNothing. Airbnb collects and remits every tax on Airbnb bookings.
Mount PleasantCharlestonNothing. Airbnb collects and remits every tax on Airbnb bookings.
Folly BeachCharlestonNothing. Airbnb collects and remits every tax on Airbnb bookings.
Isle of PalmsCharlestonNothing. Airbnb collects and remits every tax on Airbnb bookings.
Sullivan's IslandCharlestonCharleston County accommodations fee; Sullivan's Island accommodations fee
Kiawah IslandCharlestonCharleston County accommodations fee; Kiawah Island accommodations
Seabrook IslandCharlestonCharleston County accommodations fee; Seabrook Island accommodations tax
North CharlestonCharleston, Dorchester, BerkeleyBerkeley County accommodations fee (Berkeley County Treasurer); Dorchester County local accommodations tax (rate to verify)
SummervilleDorchester, Berkeley, CharlestonBerkeley County accommodations fee (Berkeley County Treasurer); Charleston County accommodations fee; Dorchester County local accommodations tax (rate to verify); Town of Summerville local accommodations tax (rate to verify)
Edisto BeachColletonColleton County accommodations
Hilton Head IslandBeaufortNothing. Airbnb collects and remits every tax on Airbnb bookings.
BlufftonBeaufortTown local accommodations tax (Town of Bluffton)
Myrtle Beach and Horry CountyHorryNothing. Airbnb collects and remits every tax on Airbnb bookings.
North Myrtle BeachHorryNothing. Airbnb collects and remits every tax on Airbnb bookings.
Surfside BeachHorryTown hospitality tax (Town of Surfside Beach)
Tybee IslandChathamNothing. Airbnb collects and remits every tax on Airbnb bookings.
SavannahChathamNothing. Airbnb collects and remits every tax on Airbnb bookings.

How it works

Booked nights a month = 365 / 12 x occupancy. Stays = booked nights / average stay. Bookings = nightly rate x booked nights + cleaning fee x stays. The Airbnb fee and the manager cut are percentages of bookings. Guest taxes are each rate times rent (plus cleaning fees when the fee is mandatory); Georgia adds $5 a night for the first 30 nights of each stay. They are paid by guests, so they only reduce your take-home if you tick the box saying you absorb the ones you remit. South Carolina property tax = market value x assessment ratio x millage / 1,000. Take-home = bookings minus fees, cleaning cost, absorbed tax and fixed costs. Break-even occupancy = fixed costs / what one month at 100% leaves before fixed costs. The slow-month line reruns everything at half your occupancy.

Everything is before income tax. It does not count vacancy between seasons separately: occupancy is your yearly average, so use a real number from booked comps, not a peak month.

FAQ

Does Airbnb collect the accommodations tax for me?

In most of these towns, yes: Airbnb collects and remits the state taxes and the local ones. The exceptions are real money. On Kiawah Island, Seabrook Island and Sullivan's Island Airbnb collects only the state taxes, so the Charleston County fee and the Town fee are yours to charge and file. In Summerville the County and Town taxes are yours. In Bluffton the Town's 3% is not on Airbnb's list, and in Surfside Beach the Town's 1% hospitality tax is not either. The calculator marks every line.

What fee does Airbnb take from hosts?

Airbnb's Help Center says most hosts pay 15.5% under the host-only fee, taken from the nightly price plus cleaning and other host fees, not from guest taxes. Some hosts still have the split fee, where the host pays about 3% and the guest pays the rest. Pick yours in the calculator or type your own.

Is the cleaning fee taxed?

It depends on whether the guest can decline it. Under the SCDOR Sales Tax Manual (Chapter 11, Questions 6 to 9), a mandatory cleaning fee is part of the taxable rent, even when it is listed as a separate line. An optional cleaning service the guest can choose or decline is not taxed. Tick the mandatory box in the calculator to include your cleaning fee in the taxable amount.

Why is my property tax so much higher than my neighbor's?

South Carolina taxes a legal residence on 4% of its value and everything else, including a rental, on 6% (SC Code 12-43-220). A home rented out more than 72 days a year loses the 4% rate. The 4% home also gets the school operating exemption, so the real gap is often bigger than 6 versus 4.

Is this my profit for income tax?

No. It is cash left after taxes your guests pay, platform fees, operating costs and your mortgage payment. Income tax, depreciation and the principal part of your mortgage are separate questions for your tax preparer.

Does it work for stays of 30 nights or more?

It is built for stays under 30 nights. South Carolina accommodations tax stops at 90 days and Georgia's $5 fee covers the first 30 nights, so long stays need a different setup.

Sources

Airbnb fee: "Most hosts pay 15.5%" under the host-only fee, which "exclude[s] the guest service fee and taxes". Split fee: "Most hosts pay a 3% service fee". Property tax: rental and second homes "shall be taxed on an assessment equal to six percent of the fair market value"; a legal residence is taxed at four percent and loses it if rented more than 72 days a year.

Zoning, permits and occupancy limits by town: Coastal SC STR rules tracker, with a printable host checklist for each of its 12 Charleston area, Edisto and Myrtle Beach areas. Every rule for those 12 areas as a spreadsheet with sources, a renewal deadline calendar and a listing fix kit come in the $49 Coastal SC Host Bundle.

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Estimates, not tax or financial advice. Confirm rates with SCDOR, the Georgia Department of Revenue and your local tax office, and check your Airbnb statement for what was collected.