Mark O'Sullivan (@MarkOSullivan94) header
Mark O'Sullivan (@MarkOSullivan94) profile picture

Building an Airbnb alternative called Caza de Casa

Málaga, Spain
Joined April 2009
Photo by Mark O'Sullivan (@MarkOSullivan94)Photo by Mark O'Sullivan (@MarkOSullivan94)Photo by Mark O'Sullivan (@MarkOSullivan94)Photo by Mark O'Sullivan (@MarkOSullivan94)Photo by Mark O'Sullivan (@MarkOSullivan94)Photo by Mark O'Sullivan (@MarkOSullivan94)Photo by Mark O'Sullivan (@MarkOSullivan94)Photo by Mark O'Sullivan (@MarkOSullivan94)Photo by Mark O'Sullivan (@MarkOSullivan94)Photo by Mark O'Sullivan (@MarkOSullivan94)
Mark O'Sullivan retweeted
We are proud to be next to so many great companies and builders 🫡
Latam/acc is live 🇨🇴🇧🇷🇲🇽🇦🇷 latamacc.si A directory of the people and companies building the golden era of Latam If you're online and working this Saturday, sign up now Order of arrival counts 🫡
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Mark O'Sullivan retweeted
This past Tuesday, I launched CHUMP and I'll be honest it was weird and not what I thought "launching" my solo built tech company would be like. There were no drinks at the local bar after, no confetti or champagne in the office, no high fives to pump up music and no banners in the parking lot. It was just me pressing a couple buttons and boom, CHUMP was born. Weird, right? (maybe it's just me) As of writing this, I have 6 people currently using the product daily and that's a massive WIN for the first hours of CHUMP. 6 people may feel like nothing, but, as @MarkOSullivan94 reminded me recently, "you've got to celebrate all the victories along the way", and, honestly 6 is a brilliant start! I hope everyone has a great weekend and if you're curious to check out CHUMP today, here you go → hichump.com/
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Mark O'Sullivan retweeted
This morning, I spoke with @MarkOSullivan94 and he reminded me to celebrate the small victories. So, I’ve now got 6 people talking to their money on @hichumpdotcom and that’s a great way to cap off the first 72 hours since launch 🚀 Happy Friday!
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Mark O'Sullivan retweeted
$1 TRILLION COLOMBIAN PESOS That's the amount which will be invested in Distrito Palermo in El Poblado. What is being built? Where is it located in El Poblado? Who is involved with the project? What does this mean for Medellin? cazadecasa.xyz/blog/distrito…
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Why I am still at $40MRR after 8 month a 🧵
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Mark O'Sullivan retweeted
Just published a new article! 👇🏾 RICE and other confidence-based frameworks are mostly noise. Here's how to make decisions without pretending to know the unknowable. Many thanks for pressing 🔁 and ❤️! longform.asmartbear.com/conf…
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Mark O'Sullivan retweeted
Caza de Casa is launching today on Uneed I know it's still early in the day but it was really cool to see Caza de Casa in third place If you could find 2 minutes to give Caza de Casa an upvote today it'd be really appreciated 🫶
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Mark O'Sullivan retweeted
Spanish Hacienda is notoriously aggressive. They go hard, they go public, and they specifically like to target famous people. The problem is, the same approach gets used on people who don't have the resources to fight back The Shakira ruling is positive, and hopefully it'll set a precedent against the kind of overreach we saw here, but as in most such cases, it's not a simple story. Messi, Ronaldo, and Mourinho all accepted plea deals over image rights fraud through offshore structures. Shakira herself accepted a plea deal for 2012 to 2014. None of this excuses how Hacienda operates. But isn't it true that every major tax authority gets aggressive when they think they're owed money? I previously had to deal with the Irish tax system, and oh boy, they'll come after you if they think that you owe them something. In any case, Spain remains the number one vacation home destination in the world, ahead of France, Portugal, and the UAE (source PropertyFinder). And the best thing we can do is get proper local tax advice before you sign anything, anywhere. Curious to hear from people who've dealt with the IRS, HMRC, or other tax authorities. Is Hacienda actually worse?
Shakira's story tells you everything you need to know about the Spanish 🇪🇸 tax system I had never looked into her case; always thought she had used some sort of shady business structure to avoid paying taxes But reality is way worse than that Turns out, she wasn't really living in Spain the year Hacienda claims she didn't pay her taxes She spent 163 days there. Less than the threshold of 183 days that automatically turns you into a tax resident So, what was Hacienda's claim? She was dating a Spaniard and had a house in Spain... So even if she was not really living there... She had to pay Now the National Audience has decreed that's not how it works, and Hacienda has to pay her back, with interests But this tells you a couple things: - If you're from a Western country and plan on leaving, you need to be VERY careful with how you structure things. Tax authorities will try anything to get your money - Shakira only got her money back because she has the time and resources to fight a legal battle for 10 years. You won't be so lucky - If you're a foreigner, stay away from the Spanish tax system. Yes, our cities and nature are unmatched. But just go there as a tourist
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Mark O'Sullivan retweeted
A good friend of mine @MarkOSullivan94 solved this problem His app Caza de Casa just hit the app store apps.apple.com/us/app/caza-d…
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That's ANOTHER Colombian Digital Nomad Visa approved using Genki If you're applying for a Digital Nomad Visa in Colombia you can use Genki as your health insurance provider I used them and got my Colombian Digital Nomad Visa approved Send me a DM if you got any questions

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Mark O'Sullivan retweeted
Olvídate de la olla de oro… yo encontré a un irlandés. 💚✨ Forget the pot of gold… I found an Irishman instead. 💚✨ @MarkOSullivan94
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Mark O'Sullivan retweeted
The day has come - we just launched the @affordihome Premium Edition. For the past 1.5 years, I've been curating properties for our free newsletter. But here's what frustrated me: 90% of the best deals I found never made it in. The off-market villas, hotels, B&Bs, working farms (like the one attached) and more. They didn't fit the format. Or the price range. Or they sold before I could share them. So we built a home for them. Twice a month, you'll get the curated pipeline - the deals we've vetted after 100+ hours of work. Off-market and on-market opportunities we'd actually look at ourselves. For the next 7 days, Founding Members get 20% off for life. After that, it's gone. Link with more details in next comment 🫡
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Mark O'Sullivan retweeted
🏡 ¡Caza de Casa ya casi llega en español! ¿Listo para encontrar tu próximo hogar? 💛 Entra a cazadecasa.xyz y únete a la lista de espera. Sé de los primeros en probar la app. 🌎✨ Allí también puedes contarnos, ¿En qué lugar te gustaría ver una alternativa a Airbnb?
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Caza de Casa X Jetpac Jetpac are one of the leading eSIM providers in the world. Easy to setup. Fast speeds. Always connected. Are you travelling and need to stay connected? Use our code "CASA15" to get 15% off one of their eSIM plans.
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FINALLY a proper social analytics platform is here. No more having a separate tab open to check the performance of each individual account. One place. All the KPIs.
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Mark O'Sullivan retweeted
Interesting analysis by an American on what $300k pay in the US actually gets you vs €200k in Europe (The Netherlands). Even after deducting all taxes the net is still higher in Europe.
It’s that time again… let’s compare what $300K pay in the US actually gets you versus €200K in Europe.. say The Netherlands. You’re self-employed, family of four living comfortably but not extravagantly. Start with Europe.. You earn €200K. The first €77K is taxed at 37% and everything above that at about 50%.. but these rates include national insurance and social security. Assume only modest self-employment deductions and your total tax bill lands around €90K, leaving roughly €110K before health insurance. Coverage for the whole family costs about €3,600 a year because kids are free until 18 and there are practically no deductible (minuscule.. like a few hundred bucks) or out of pocket costs. Then add childcare allowances and deductions which range from €3-10K depending on situation. So let’s go with €115K true take-home. If you own a home, property taxes are rounding errors.. maybe €600–2,000 a year. Then there’s education… Article 23 of the Dutch Constitution enshrines schooling as a guaranteed right, with the government funding both public and “special” private schools.. meaning options like Montessori, Dalton, Waldorf, or religious schools are tuition-free (beyond tiny voluntary fees). Now let’s go to the US, say NYC metro suburbs… You make $300K. After the standard deduction, your taxable income is about $270K. Your federal income tax is an effective rate of ~16%. Add ~5% state income tax and ~$26K net self-employment tax (after the 50% deduction), and $25K in property tax on your house… and your total tax load is about $115K… or a ~38% effective rate. That leaves you with about $185K. Much higher than Europe, right? But now subtract $35K for private family health insurance (premiums plus OOP) and your take-home is now $150K. Maybe there’s a couple K of child credits so $152K. OK now what about baseline incremental lifestyle costs in the US vs EU? The average US household owns 2 cars and spends $10-20K a year on ownership, insurance, gas, and maintenance which is unavoidable in US suburban and even sometimes urban life. A Dutch family might manage with one small car plus bikes and trains for €2-5K. Scale the. compounds the lifestyle delta. The typical American home is almost 2,500sf which is almost 2x the Dutch average of ~1,250.. that’s more square and cubic footage to heat, cool, insure, repair, and fill with stuff. So call it another $5–10K in utilities, furnishings, and upkeep that most European families avoid via cultural differences that value compact intimacy and efficiency vs individualistic spatial grandeur. Then the education gap widens it yet again. In the NYC area and most top cities, those same options that are free in the NL will be private and cost $20–50K per kid, every single year. Even if you stay in public school, property taxes effectively act as tuition. So even with a ~50% higher gross in the US and much lower headline tax rates… the real disposable advantage shrinks to roughly 20–25%… and actually disappears entirely once healthcare, property taxes, car dependency, and the overhead of sprawling spaces are factored in. Depending on your situation, your take-home pay could actually be lower than the equivalent in Europe even with a much higher income. I talk about this stuff not as some kind of champion of Europe but as a deeply patriotic American who wants to spread this knowledge so that we can do much better at home.
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"Why does your company deserve to exist?" Airbnb CEO Brian Chesky likes to ask this question to entrepreneurs What's your answer?
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The problem with hotel booking websites like Expedia and Booking is the incentives aren't aligned with the customer. Their incentive is to get you to book the most expensive hotel possible (more commissions). Your incentive is to book the most cheapest hotel that doesn't suck
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The brand new website for Caza de Casa 🏡
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